CN210349397U

CN210349397U - Double-shielding computer cable

Info

Publication number: CN210349397U
Application number: CN201921269548.0U
Authority: CN
Inventors: 张忠江; 张晓军; 赵爱媛
Original assignee: Anhui Tiansheng Instrument Cable Co Ltd
Current assignee: Anhui Tiansheng Instrument Cable Co Ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-04-17
Anticipated expiration: 2029-08-07

Abstract

The utility model relates to the field of cables, and a double-shielded computer cable is disclosed, including steel strand wires circle, steel strand wires circles the cover and is equipped with the lag rather than fixed connection, the outside of lag is provided with four cable groups of evenly distributed, four the inside of cable group all is provided with four conductor core conductors of evenly distributed, every all the cover is equipped with the insulating cover rather than fixed connection, four on the conductor core conductor all the cover is equipped with rather than fixed connection's first tin foil layer rather than the cover on the cable group, the outside of lag is provided with the inoxidizing coating, be provided with the filling layer between inoxidizing coating and the lag, the cover is equipped with rather than fixed connection's total around the covering on the inoxidizing coating, always around the covering on the covering cover be equipped with rather than fixed connection's total shield layer. The utility model discloses a, it is poor to have solved cable transmission performance, easily receives signal interference, influences data transmission, is easily stolen self information, and the security performance is poor, causes the problem of disconnected core easily.

Description

Double-shielding computer cable

Technical Field

The utility model relates to a cable field specifically is double-shielded computer cable.

Background

Double-shielding is two-layer shielding layer, divides the shielding earlier and always shields afterwards, has two total shielded cable but does not have a big effect yet, generally adopts to divide the shielding earlier and always shields afterwards mostly, and double-shielded cable means has two-layer shielding layer, and must have the cable of insulation between the two-layer shielding layer, and the shielding layer should have good ground connection, if ungrounded because the shielding layer area is big, has very big parasitic distributed capacitance, will produce parasitic coupling interference.

A plurality of cables in the current market are poor in transmission performance, are very easy to be interfered by external signals, influence data transmission, are easy to steal self information by people, are poor in confidentiality, are easy to be extruded and pulled randomly in the using process of the cables, enable outer rubber layers of the cables to be damaged, enable inner fiber woven layers to be worn in the using process, enable inner wires to be exposed on the outer layers, easily cause core breaking, and enable the cables to fail, and therefore the double-shielded computer cable is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a double-shielded computer cable has and prevents to receive external signal interference in the data transmission process, the normal transmission of data, prevent to be stolen self information by the people, there is good secret performance, prevent the impaired advantage of cable, it is poor to have solved cable transmission performance, very easily receive external signal's interference, influence data transmission, and easily by the people steal self information, secret performance is poor, cause disconnected core easily, cause the cable inefficacy, the maintenance is inconvenient, influence power transmission's problem.

(II) technical scheme

Receive external signal interference in preventing the data transmission in-process for realizing the aforesaid, data normal transmission prevents to be stolen self information by the people, has good confidentiality, prevents the impaired purpose of cable, the utility model provides a following technical scheme:

the double-shielding computer cable comprises a steel strand coil, wherein a protective sleeve fixedly connected with the steel strand coil is sleeved on the steel strand coil, four cable groups which are uniformly distributed are arranged on the outer side of the protective sleeve, four core conductors which are uniformly distributed are arranged inside the four cable groups, an insulating sleeve fixedly connected with the core conductors is sleeved on each core conductor, the outer side of each insulating sleeve is contacted with the inner side of the cable group, first tin foil layers fixedly connected with the cable groups are sleeved on the four cable groups, the outer sides of the four first tin foil layers are fixedly connected with the outer side of the protective sleeve, the outer walls of two adjacent first tin foil layers are contacted with each other, a protective layer is arranged on the outer side of the protective sleeve, the inner side of the protective layer is contacted with the outer sides of the four first tin foil layers respectively, and a filling layer is arranged between the protective layer and the protective sleeve, the protective layer is sleeved with a total winding covering fixedly connected with the protective layer, the total winding covering is sleeved with a total shielding layer fixedly connected with the total shielding layer, the total shielding layer is sleeved with a second tin foil layer, and the second tin foil layer is sleeved with a sheath.

Preferably, the four cable groups respectively comprise a sub-shielding layer, the inner parts of the four sub-shielding layers are fixedly connected with sub-winding covering layers, the outer sides of the four sub-shielding layers are fixedly connected with insulating layers, and the outer sides of the four insulating layers are fixedly connected with the inner sides of the four first tin foil layers respectively.

Preferably, the inoxidizing coating includes the elastic layer, the cover is equipped with rather than fixed connection's around the package enhancement layer on the elastic layer, the outside and the inboard fixed connection of total package layer around the package enhancement layer.

Preferably, a grounding lead is arranged inside each of the total shielding layers.

Preferably, the filling layer is composed of polypropylene molding filling strips and a bundled yarn flame-retardant material.

Preferably, the outer side of the sheath is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are distributed at equal intervals along the length direction of the sheath.

(III) advantageous effects

Compared with the prior art, the utility model provides a double-shielded computer cable possesses following beneficial effect:

1. this double-shielded computer cable, through setting up cable group and total shielding layer, branch shielding layer on the cable group has first layer shielding effect to the magnetic field that the electric current in the core conductor produced, total shielding layer has second layer shielding effect to the magnetic field that the electric current in the core conductor produced, the ground lead that sets up in the total shielding layer makes the cable have good ground connection, can prevent to have parasitic distributed capacitance because the shielding layer area is big under the ungrounded condition, produce parasitic coupling interference, the effect on first tin foil layer and second tin foil layer prevents strong and weak electric wire signal interference, it is poor to have solved cable transmission performance, very easily receive external signal's interference, influence data transmission, and easily stolen self information by the people, the poor problem of secret performance.

2. This double-shielded computer cable, the steel strand wires circle that sets up through the cable center, the steel strand wires circle can increase the tensile of whole cable, anti-torque performance, the elastic layer that includes through the inoxidizing coating with around the package enhancement layer, first tin foil layer is hugged closely to the elastic layer, further protect inside conductor core, prevent that unexpected condition such as outer extrusion from arousing the damage of conductor core, guarantee the holistic intensity performance of cable around the package enhancement layer, the sheath is provided with the strengthening rib outward, the strengthening rib has increased intensity, can prevent to a certain extent that the phenomenon of disconnection from appearing in the cable, with guarantee electric power transmission and eliminated the potential safety hazard, solved easily by arbitrary extrusion and pull messenger inside worn and torn in the cable use, the wire exposes at the skin, cause the problem that disconnected core causes the cable inefficacy.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the cable assembly of the present invention;

fig. 3 is a schematic view of the structure of the reinforcing rib of the present invention.

In the figure: 1. steel strand coils; 2. a protective sleeve; 3. a cable set; 301. dividing a shielding layer; 302. separately winding the cladding; 303. an insulating layer; 4. a core conductor; 5. an insulating sleeve; 6. a first tin foil layer; 7. a protective layer; 701. an elastic layer; 702. wrapping a reinforcing layer; 8. a filling layer; 9. a total wrapping layer; 10. a total shielding layer; 11. a second tin foil layer; 12. a sheath; 13. a ground lead; 14. and (5) reinforcing ribs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a double-shielded computer cable includes a steel stranded coil 1, the steel stranded coil 1 can increase the tensile and torsional properties of the whole cable, a protective jacket 2 fixedly connected with the steel stranded coil 1 is sleeved on the steel stranded coil 1, the protective jacket 2 is made of nylon material and can protect the steel stranded coil 1, four cable groups 3 are uniformly distributed on the outer side of the protective jacket 2, the cable groups 3 are composed of a partial shielding layer 301, a partial winding cladding layer 302 and an insulating layer 303, the partial winding cladding layer 302 reinforces the core conductors 4, the partial shielding layer 301 has a first shielding effect on the magnetic field generated by the current in the core conductors 4, the insulating layer 303 insulates and isolates the shielding layers, four core conductors 4 are uniformly distributed inside the four cable groups 3, an insulating sleeve 5 fixedly connected with the core conductors 4 is sleeved on each core conductor 4 to play an insulating role, the outer side of each insulating sleeve 5 is in contact with the inner side of the cable group 3, the four cable groups 3 are all sleeved with first tin foil layers 6 fixedly connected with the four cable groups, the outer sides of the four first tin foil layers 6 are fixedly connected with the outer side of the protective sleeve 2, the first tin foil layers 6 are glued with the protective sleeve 2, the outer walls of two adjacent first tin foil layers 6 are contacted with each other, the first tin foil layers 6 play a role in preventing strong and weak electric wire signal interference on the cable groups 3, the outer side of the protective sleeve 2 is provided with a protective layer 7, the protective layer 7 comprises an elastic layer 701 and a wrapping reinforced layer 702, the elastic layer 701 further protects the inner conductor core 4, the wrapping reinforced layer 702 ensures the overall strength performance of the cable, the inner sides of the protective layer 7 are respectively contacted with the outer sides of the four first tin foil layers 6, a filling layer 8 is arranged between the protective layer 7 and the protective sleeve 2, the filling layer 8 enables gaps generated in the cabling process to be compact, and a main layer 9 fixedly connected with the protective layer 7 is sleeved on the protective layer, the protective layer 7 and the cable group 3 are reinforced around the covering 9, the total shielding layer 10 fixedly connected with the total shielding layer is sleeved on the total winding covering 9, the magnetic field generated by the current in the wire core conductor 4 is shielded by the total shielding layer 10, the second tin foil layer 11 is sleeved on the total shielding layer 10, the second tin foil layer 11 plays a role in preventing strong and weak wire signal interference on the total shielding layer 10, and the sheath 12 is sleeved on the second tin foil layer 11.

Further, four cable groups 3 all include branch shielding layer 301, four equal fixedly connected with in inside of branch shielding layer 301 divide around covering 302, four equal fixedly connected with insulating layers 303 in outside of branch shielding layer 301, the outside of four insulating layers 303 respectively with the inboard fixed connection of four first tin foil layers 6, divide around covering 302 and consolidate cable group 3 inside evenly distributed's sinle silk conductor 4, divide shielding layer 301 to have the first layer shielding effect to the magnetic field of the electric current production in the sinle silk conductor 4, insulating layer 303 makes insulating isolation between the shielding layer.

Further, inoxidizing coating 7 includes elastic layer 701, and the cover is equipped with rather than fixed connection's around package enhancement layer 702 on the elastic layer 701, the outside of around package enhancement layer 702 and the inboard fixed connection of total around package 9, and first tin foil layer 6 is hugged closely to elastic layer 701, further protects inside sinle silk conductor 4, prevents that unexpected circumstances such as outer extrusion from arousing sinle silk conductor 4's damage, guarantees the holistic intensity performance of cable around package enhancement layer 702.

Furthermore, the grounding lead 13 is arranged inside the total shielding layer 10, and the grounding lead 13 enables the cable to have good grounding, so that the parasitic coupling interference caused by a large parasitic distributed capacitance due to the large area of the shielding layer under the condition of no grounding can be prevented.

Furthermore, the filling layer 8 is composed of a polypropylene forming filling strip and a bundled yarn flame-retardant material, the polypropylene forming filling strip enables a gap generated in the cabling process to be compact, the cable core of the cable is stable, and the bundled yarn flame-retardant material can play a certain flame-retardant effect.

Further, the outside of sheath 12 is provided with a plurality of strengthening ribs 14, and a plurality of strengthening ribs 14 are along 12 length direction equidistance distributions of sheath, and strengthening rib 14 has increased intensity, can prevent to a certain extent that the phenomenon of disconnection from appearing in the cable to guarantee power transmission and eliminated the potential safety hazard.

The working principle is as follows: an insulating sleeve 5 is sleeved on the core conductor 4, a group of four core conductors 4 are fixedly reinforced by a sub-winding covering layer 302, a sub-shielding layer 301 is sleeved on the sub-winding covering layer 302, the sub-shielding layer 301 has a first shielding effect on a magnetic field generated by current in the inner core conductor 4, an insulating layer 303 is sleeved on the sub-shielding layer 301, the insulating layer 303 enables the shielding layers to be insulated and isolated, a cable group 3 is wrapped by a first tin foil layer 6, the cable group 3 further prevents interference of strong and weak wire signals, a protective sleeve 2 is sleeved on the steel twisted coil 1, the protective sleeve 2 is arranged in the middle of the four cable groups 3, the protective sleeve 2 and the first tin foil layer 6 are connected together by gluing, an elastic layer 701 is sleeved on the protective layer 701, a winding reinforcing layer 702 is sleeved outside the elastic layer 701, a filling layer 8 consisting of polypropylene molding filling strips and bundle wire flame-retardant materials is filled inside the elastic layer 701, a general winding covering layer 9 is sleeved on the winding reinforcing layer 702, the protective layer 7 and the cable group 3 are reinforced by the total wrapping layer 9, the total wrapping layer 9 is sleeved with a total shielding layer 10, the total shielding layer 10 has a second shielding effect on a magnetic field generated by current in the wire core conductor 4, the total shielding layer 10 is sleeved with a second tin foil layer 11, the total shielding layer 10 further prevents interference of strong and weak wire signals, a grounding lead 13 is arranged in the total shielding layer 10, a cable has good grounding performance, parasitic coupling interference is avoided, the second tin foil layer 11 is sleeved with a sheath 12, a reinforcing rib 14 is arranged on the outer side of the sheath 12, the strength of the reinforcing rib 14 is increased, can prevent the cable from being disconnected to a certain extent, solves the problems that the cable has poor transmission performance and is easily interfered by external signals to influence data transmission, and the cable is easy to steal self information by people, has poor confidentiality, is easy to cause core breaking, causes the cable to be invalid and has inconvenient maintenance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Double-shielded computer cable, including steel strand wires coil (1), its characterized in that: the steel stranded coil (1) is sleeved with a protective sleeve (2) fixedly connected with the protective sleeve, four cable groups (3) are uniformly distributed on the outer side of the protective sleeve (2), four core conductors (4) are uniformly distributed in the four cable groups (3), an insulating sleeve (5) fixedly connected with the core conductors is sleeved on each core conductor (4), the outer side of each insulating sleeve (5) is contacted with the inner side of the cable group (3), four cable groups (3) are sleeved with first tin foil layers (6) fixedly connected with the cable groups, the outer sides of the four first tin foil layers (6) are fixedly connected with the outer side of the protective sleeve (2), the outer walls of two adjacent first tin foil layers (6) are contacted with each other, the outer side of the protective sleeve (2) is provided with a protective layer (7), and the inner sides of the protective layer (7) are respectively contacted with the outer sides of the four first tin foil layers (6), be provided with between inoxidizing coating (7) and lag (2) filling layer (8), the cover is equipped with rather than fixed connection's total around covering (9) on inoxidizing coating (7), the cover is equipped with rather than fixed connection's total shielding layer (10) on covering (9) always, the cover is equipped with second tin foil layer (11) on total shielding layer (10), the cover is equipped with sheath (12) on second tin foil layer (11).

2. The double-shielded computer cable of claim 1, wherein: four cable group (3) all include branch shielding layer (301), four divide the equal fixedly connected with in inside of shielding layer (301) to divide around covering (302), four divide the equal fixedly connected with insulating layer (303) in the outside of shielding layer (301), four the outside of insulating layer (303) respectively with the inboard fixed connection of four first tin foil layers (6).

3. The double-shielded computer cable of claim 1, wherein: the protective layer (7) comprises an elastic layer (701), the elastic layer (701) is sleeved with a wrapping reinforcing layer (702) fixedly connected with the elastic layer, and the outer side of the wrapping reinforcing layer (702) is fixedly connected with the inner side of the total wrapping layer (9).

4. The double-shielded computer cable of claim 1, wherein: and a grounding lead (13) is arranged in each of the total shielding layers (10).

5. The double-shielded computer cable of claim 1, wherein: the filling layer (8) is composed of polypropylene molding filling strips and a bundled yarn flame-retardant material.

6. The double-shielded computer cable of claim 1, wherein: reinforcing ribs (14) which are arranged at equal intervals are arranged on the outer side of the sheath (12).